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First, let us suppose you have the energy to travel at any speed you like. The only restriction you have is that you cannot travel at the speed of light, because you would need infinite energy, and even though you have infinite energy, you cannot apply infinite energy if you don't have infinite time to apply it. So you accelerate in a ship let us say at ...


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I'll approach this slightly differently. The abundance of Li in the solar system and in the Earth's crust is low compared with elements like carbon, oxygen, silicon and iron. The solar system lithium is created partly (only 10%) by primordial nucleosynthesis, a bit by spallation reactions of cosmic rays on nuclei in the interstellar medium, but mainly in ...



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